Skip to content

City water profile

Middletown water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Middletown, Delaware.

Median indexed hardness

79PPM

One indexed ZIP

Range 78.9–78.9 PPM

State comparison
24 PPM above
State hardness rank
#4 of 37
Matched utilities
10
Active health records
0

City summary

What the indexed records say

Middletown has 1 published ZIP profile across New Castle County. The indexed median is 79 PPM, compared with 55 PPM across Delaware.

Among the 37 Delawarecities with an indexed median, Middletown ranks #4from highest to lowest. Across all 48 state ZIP profiles, available estimates run from 47.3to 82.4 PPM.

Because only one ZIP is represented, the city median and range are the same local estimate. It should not be read as multiple independent samples across the community.

Hardness distribution

How local ZIP estimates compare

Soft0 ZIPs
Moderately hard1 ZIP
Hard0 ZIPs
Very hard0 ZIPs

1 of 1 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance
11.9 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 1Low: 0

Observation window: Jan 4, 2016 to Jun 10, 2026.

ZIP directory

Water reports in Middletown

Open a ZIP for site-level provenance and measurements.

ZIP code

19709

Moderately Hard

78.9 PPM

Nearest site
11.9 mi
Confidence
Moderate

View full ZIP evidence →

Public water systems

Utilities associated with this city

Middletown Water Department

PWSID DE0000614

Surface water
System population served
17,700
Last reported
Apr 30, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

North West Pump District

PWSID DE00A0347

Groundwater
System population served
4,149
Last reported
Apr 30, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Willow Grove Mill

PWSID DE0020122

Groundwater
System population served
3,090
Last reported
Apr 30, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Parkside

PWSID DE0020123

Groundwater
System population served
1,467
Last reported
Apr 30, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

South East Pump District

PWSID DE00A0376

Groundwater
System population served
936
Last reported
Apr 30, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Dove Run

PWSID DE0020124

Groundwater
System population served
909
Last reported
Apr 30, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Villagebrook

PWSID DE0020141

Groundwater
System population served
847
Last reported
Apr 30, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Ponds Of Odessa (awc)

PWSID DE0020088

Groundwater
System population served
216
Last reported
Apr 30, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Summit Pond Pump District

PWSID DE0000140

Groundwater
System population served
177
Last reported
Apr 30, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Mt Pleasant Mhp, Llc

PWSID DE0000008

Groundwater
System population served
117
Last reported
Apr 30, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Compliance history

What EPA records show

No active health-based violation appears among the associated systems in the represented EPA reporting quarter. This does not mean every contaminant was tested at every tap.

RecordSystemPeriodStatus
Consumer Confidence RuleDE0000008Jul 1, 2022Resolved
Lead and Copper RuleDE0000008Jul 1, 2021Resolved

Practical next steps

Move from index to evidence

  1. 1. Open your ZIP. Check distance, dates, confidence, and the associated utility.
  2. 2. Read the current CCR. Confirm source water, detections, limits, ranges, and notices.
  3. 3. Test the tap when needed. Confirm health concerns or treatment sizing with the right method.

Questions people ask

About water in Middletown

Is the water hard?

The indexed city median is 79 PPM. Open the ZIP report to verify the distance and confidence behind that estimate.

Is the tap water safe?

Compliance history is utility-wide and cannot guarantee conditions at every tap. Check current notices and test when address-specific evidence is needed.

Do I need treatment?

Choose treatment only after confirming the problem at the property. A softener targets hardness; contaminant treatment requires a matching, verified performance claim.